X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=UefiCpuPkg%2FPiSmmCpuDxeSmm%2FX64%2FSmiEntry.nasm;h=5d731e2280957a418f53b5707a60414ca9b7ab73;hp=9971ae6f064a8023e4fd0047492fbfd89fa8a3b4;hb=3c5ce64f23c437e671259385d0ea2fdcf3a44aef;hpb=c455687fd0babe03a203b38c9a884c65198d8c1d

diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/X64/SmiEntry.nasm b/UefiCpuPkg/PiSmmCpuDxeSmm/X64/SmiEntry.nasm
index 9971ae6f06..5d731e2280 100644
--- a/UefiCpuPkg/PiSmmCpuDxeSmm/X64/SmiEntry.nasm
+++ b/UefiCpuPkg/PiSmmCpuDxeSmm/X64/SmiEntry.nasm
@@ -54,7 +54,8 @@ extern ASM_PFX(CpuSmmDebugEntry)
 extern ASM_PFX(CpuSmmDebugExit)
 
 global ASM_PFX(gPatchSmbase)
-global ASM_PFX(mXdSupported)
+extern ASM_PFX(mXdSupported)
+global ASM_PFX(gPatchXdSupported)
 global ASM_PFX(gPatchSmiStack)
 global ASM_PFX(gPatchSmiCr3)
 global ASM_PFX(gcSmiHandlerTemplate)
@@ -118,8 +119,8 @@ ASM_PFX(gPatchSmiCr3):
     ltr     ax
 
 ; enable NXE if supported
-    DB      0xb0                        ; mov al, imm8
-ASM_PFX(mXdSupported):     DB      1
+    mov     al, strict byte 1           ; source operand may be patched
+ASM_PFX(gPatchXdSupported):
     cmp     al, 0
     jz      @SkipXd
 ;